Machinery for trimming straw braid



- A m/AZS/Ma/a 2984. JAZZ/67.721455 .59. a, 04/.

N'PETERS, FHOTO-LITHUGRAPHER. WASHINGTON, D. Cv

stars r HENRY H. ROBBINS, OF MIDDLEBORO, MASSACHUSETTS.

MACHINERY FOR TR-IMMING STIR-AW BRAID.

Specification of Letters Patent No. 1,984, dated February 18, 1841.

To ((27 107mm 2'2 may concern;

Be it known that I, HENRY H. Eomnxs, of Middleboro, in the county ofPlymouth and State of Massachusetts, have invented new and usefulImprovements in Machinery for Trimming Straw Braid.

These improvements, the principles thereof, the application of saidprinciples by which the same may be distinguished from other inventions,together with such parts, improvements or combinations as I claim to bemy invention and for which I solicit Letters Patent 1 have herein setforth in the following description and accompanying drawings hereinreferred to, which taken in connection form my specification.

Figures 1, 2, 3 4 represent my improvements. F 1 is a side elevation ofmy machine and Fig. 2 a plan of the same. Figs. 3 and 4 being detailedviews of some of the important parts.

A A A A is the framework to which the different operative parts of themachine are attached.

B B is the driving shaft having proper hearings in the framework A A, towhich shaft power may be applied by a winch C or in any other properway. A cone of pulleys D, D, D, is firmly fixed on the shaft B B a bandE E from one of which pulleys passes to and around a pulley F on theshaft Gr G the journals of which shaft have proper bearings in the lowerpart of the framework as shown in Fig. 1. A pulley H of larger diameterthan the pulley F is firmly fixed on the shaft G G and a band I I fromthis pulley passes to and around a grooved pulley K on the shaft L L,the journals of which shaft have proper bearings in the uprights M Mattached to the framework N N.

Two circular saws O P are arranged on and revolve with the shaft L Lbeing placed at proper distances apart. These saws are for cutting offthe long and short ends which occur in braiding straw. The long ends arefirst to be separated from the braid and for this purpose it is passedto the circular saw 0 over the block Q, one side R of which is beveledor inclined as shown in Fig. 2, the wider part of the block being underthe shaft L L. On the top of the block Q is a plate of metal S T, Figs.1 and 3, which I denominate a riser, the said plate being triangular,and the inclined side corresponding with the beveled side of the blockQ, so that the angular part S of the plate S T will be where the braidenters.

From the arrangement above specified it will be seen that the long endswhich in their natural position in the braid, when it is placededgewise, are vertical or nearly so, will, as the braid passes along theriser S T be gradually brought to a horizontal position, see Figs. 1 and3, so that when they arrive under the circular saw, they may beeffectually operated on by the same. The braid is kept in its verticalposition as it passes along the riser by means of a steel spring U(secured at one end to the upright part V of the block Q by screws WWV), and a gage X X which is formed of a piece of metal, the lower partof which is bent at right angles to the upper as shown in Figs. 2 and 3,the bent part projecting over the spring U and being at a distance fromthe riser suflicient only to permit the passage of the braid, keepingthe lower side of the same in close contact with the surface of theriser, and likewise by this means keeping the ends to be cut offhorizontal. The gage may be adjusted to any width of braid by means ofthe screws a a which secure it to the block V and slots 6 b, whicharrangement will be understood by an inspection of Fig. 3. The braid isdrawn from the circular saw 0 by a roller 0 firmly fixed on a verticalshaft d one end or journal of which has a proper bearing in the curvedupright 6 attached to the framework A A, the other end or journal beingsupported in a step in the cross beam f as shown in dotted lines partlyin Fig. 1'.

The shaft (Z and roller 0 thereon are caused to revolve by a belt 9 gpassing from one of the pulleys D on the driving shaft B B to and arounda pulley h on the shaft (Z. The braid in passing around the roller 0 ispressed against the same and retarded by the friction roller 1' properlysupported in the movable frame 8 s as shown in Fig. 1.

which is guided by the tongueing and grooving shown at t, and pressed upby the wound circular spring a, the operation of which will be readilyunderstood by an inspection of Figs. 1 and 2 The braid turning aroundthe roller 0 as shown in Fig. 1, is next passed to and around a smallmetallic roller 2' the journals of which are properly arranged in theopening in the upright block is, as shown at Z, Fig. 4. Between thisroller 2' and the circular saw P is a bed knife m properly secured tothe block is by screws 41, n, Fig. 4.

From the above it will be apparent that as the braid is passed aroundthe roller 2', the bend being sharp, that the short ends will project orstand out sufficiently to enable the circular saw to separate them fromthe braid as they come into the bite formed by the edge of the bed knifem and the teeth of the circular saw P as it revolves, the face of thebedknife likewise serving to prevent the teeth of the saw from injuringthe braid. The braid is guided in passing around the roller 2' by a bentgage O P Fig. l, on the bent part 0 of which the lower side of the braidrests. This gage may be raised or lowered at pleasure by means of a slotin the part 79 andascrew 1 which passes through the same and confinesthe gage in any position to the block is.

The braid is drawn from the circular saw P by the roller 12 011 thevertical shaft 'w the lower part of which rests and revolves in a properstep in the projection in from the framework A A. This shaft is revolvedby a band a a passing from a pulley h on the shaft (Z to the pulley e onthe shaft w.

Having thus described my improved H13: chine I shall claim as myinvention,

1. The combination of a revolving circular saw with a riser (so called)and a spring and gage, the Whole being arranged and operatingsubstantially as herein above described for the purpose of separatingthe long ends from the braid.

2. And I also claim separating the short ends from the braid, on theopposite side of the same,by means of acircular saw in combination witha small metallic roller. bedknife and gage, the arrangement andoperation being substantially as herein above specified.

In testimony that the above is a true description of my said inventionand improvement I have hereto set my signature thirtieth day of Decemberin the year eighteen hundred and forty.

HENRY H. ROBBINS.

Witnesses EARL ALDEN, ELIAH WARD.

